// 复制
export function deepCopy(target) {
  if (typeof target == "object") {
    const result = Array.isArray(target) ? [] : {};
    for (const key in target) {
      if (typeof target[key] == "object") {
        result[key] = deepCopy(target[key]);
      } else {
        result[key] = target[key];
      }
    }
    return result;
  }
  return target;
}

// 生成32位uuid
export function UUID() {
  this.id = this.createUUID();
}

UUID.prototype.valueOf = function () {
  return this.id;
};
UUID.prototype.toString = function () {
  return this.id;
};

UUID.prototype.createUUID = function () {
  var dg = new Date(1582, 10, 15, 0, 0, 0, 0);
  var dc = new Date();
  var t = dc.getTime() - dg.getTime();
  var tl = UUID.getIntegerBits(t, 0, 31);
  var tm = UUID.getIntegerBits(t, 32, 47);
  var thv = UUID.getIntegerBits(t, 48, 59) + "1"; // version 1, security version is 2
  var csar = UUID.getIntegerBits(UUID.rand(4095), 0, 7);
  var csl = UUID.getIntegerBits(UUID.rand(4095), 0, 7);
  var n =
    UUID.getIntegerBits(UUID.rand(8191), 0, 7) +
    UUID.getIntegerBits(UUID.rand(8191), 8, 15) +
    UUID.getIntegerBits(UUID.rand(8191), 0, 7) +
    UUID.getIntegerBits(UUID.rand(8191), 8, 15) +
    UUID.getIntegerBits(UUID.rand(8191), 0, 15); // this last number is two octets long
  return tl + tm + thv + csar + csl + n;
};
UUID.getIntegerBits = function (val, start, end) {
  var base16 = UUID.returnBase(val, 16);
  var quadArray = new Array();
  var quadString = "";
  var i = 0;
  for (i = 0; i < base16.length; i++) {
    quadArray.push(base16.substring(i, i + 1));
  }
  for (i = Math.floor(start / 4); i <= Math.floor(end / 4); i++) {
    if (!quadArray[i] || quadArray[i] == "") quadString += "0";
    else quadString += quadArray[i];
  }
  return quadString;
};
UUID.returnBase = function (number, base) {
  return number.toString(base).toUpperCase();
};
UUID.rand = function (max) {
  return Math.floor(Math.random() * (max + 1));
};
